If the huge beetle has a mass of 8.0 kg, find his centripetal acceleration ac. D) What is the average centripetal force Fc on the beetle?

Answer 1

The centripetal acceleration for circular motion at a constant speed v and radius r is:

    a = v^2 / r

The mass isn't used for that.  You'll need to find the speed and radius in the problem to get a value for that acceleration.

The force needed to produce that acceleration is given by Newton's 2nd law:

    F = ma

Once you know the acceleration (in m/s^2 units), multiply by m=8 kg to get force in newtons.